Politico has the details about why Greta Van Sustern abrubtly signed off Fox News at the end of last week...
"On Thursday night, I made my decision and informed Fox News of my decision that I was leaving Fox News Channel per my contract," Van Susteren wrote on her Facebook page Tuesday. "Fox has not felt like home to me for a few years and I took advantage of the clause in my contract which allows me to leave now. The clause had a time limitation, meaning I could not wait."
Brit Hume will take over her 6pm timeslot.